Hi, could anyone please advise on how to create a RMA process with Odoo MRP. I tried to use Repair for the RMA as advised by many, however, I discover that the RMA is tracking the inventory and lead to invoice and PO for parts that need to replace. 

I am trying to configure the Repair to track the repair process like the MRP Routing and Work Center, because we need to troubleshoot and identify the root cause before the actual repair can be carried out. If I create another Work Order, it will be part of the Manufacturing process. How to differentiate it as Repair process with it own Work Center and Routing. One point to note we are using the same work center to Repair and Production